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                  <h4>dwn_nao</h4>Download the monthly NAO index
                  <br><small>Last modified: 16-Feb-2010 15:46:16</small>

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                  <a href="http://guillaumemaze.googlecode.com/svn/trunk/matlab/codes/geophysic/dwn_nao.m">Download here</a>
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                  <br>% dwn_nao Download the monthly NAO index<br>%<br>% [NAO_index, NAO_time] = dwn_nao([DT])<br>% <br>% Download the monthly NAO index at:<br>% http://www.cpc.noaa.gov/products/precip/CWlink/pna/norm.nao.monthly.b5001.current.ascii<br>%<br>% Inputs:<br>%	DT is the time step of the time serie<br>%		By default it is set to 'm' for monthly values<br>%		It can be:<br>%			'y' for yearly means<br>%			'w' for yearly winter values (DJF average)<br>%<br>% Outputs:<br>%	NAO_index: well, the NAO index !<br>%	NAO_time: the time axis as returned by datenum<br>%<br>% Rq: The downloaded file is stored in ~/matlab/routines/data subdirectory<br>%<br>% Created: 2009-05-29.<br>% Rev. by Guillaume Maze on 2009-09-01: Add winter value option
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                  Last update: 2011 March 04, 17:46<br>
                  Created by Guillaume Maze<br>
                  More informations at: <a href="http://codes.guillaumemaze.org/matlab">codes.guillaumemaze.org/matlab</a><br>
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